WN3820
WN3820 (Southwest Airlines) is a multi-stop service on 20 routes, busiest Las Vegas to Sacramento. Of 375 departures recorded from October 2024 to July 2026, 74.3% left on time, according to the US BTS.
- On-time departures74.3%of 375 flights
- Average delay14.6 min
- July 20264▼ 84.0%vs July 2025
- Cancelled0.3%
- Legs flown under this number20
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods18 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 3 | 1 | ▼ 66.7% |
| February | 8 | – | – |
| March | 27 | 43 | ▲ 59.3% |
| April | 23 | 37 | ▲ 60.9% |
| May | 22 | 35 | ▲ 59.1% |
| June | 27 | 7 | ▼ 74.1% |
| July | 25 | 4 | ▼ 84.0% |
| August | 27 | – | – |
| September | 26 | – | – |
| October | 34 | – | in progress |
| November | 4 | – | – |
| December | 2 | – | – |
according to the US BTS · October 2024 → July 2026
On-time departures by month
Months without data are left blank.
On time = departure within 15 minutes of schedule. Non-cancelled flights with a recorded delay only.
The most recent periods18 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 50.0% | 100.0% | ▲ 100.0% |
| February | 75.0% | – | – |
| March | 88.9% | 79.1% | ▼ 11.0% |
| April | 91.3% | 67.6% | ▼ 26.0% |
| May | 72.7% | 45.7% | ▼ 37.2% |
| June | 85.2% | 71.4% | ▼ 16.2% |
| July | 60.0% | 100.0% | ▲ 66.7% |
| August | 85.2% | – | – |
| September | 88.5% | – | – |
| October | 64.7% | – | in progress |
| November | 50.0% | – | – |
| December | 0.0% | – | – |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
Months without data are left blank.
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
Months without data are left blank.
The most recent periods18 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 1 | 0 | ▼ 100.0% |
| February | 0 | – | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
according to the US BTS · October 2024 → July 2026
This is a historical record of departures already flown, not a forecast for your flight.
Several legs: the headline figure averages all of them. See the leg table.
Cancellation share
- Not cancelled 99.7% 374
- Cancelled 0.3% 1
Share of all recorded flights in the period, all legs. · Oct 13, 2024 → Jul 25, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
6| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| LAS SMF Harry Reid International Airport – Sacramento International Airport | 639 | 28.9 min | 52.6% | 57 |
| MSY DEN Louis Armstrong New Orleans International Airport – Denver International Airport | 1,708 | 5.6 min | 89.8% | 49 |
| MSP MDW Minneapolis–Saint Paul International Airport / Wold–Chamberlain Field – Chicago Midway International Airport | 560 | 9.5 min | 75.6% | 45 |
| BWI RSW Baltimore/Washington International Thurgood Marshall Airport – Southwest Florida International Airport | 1,483 | 14.6 min | 82.9% | 41 |
| MCO SJU Orlando International Airport – Luis Munoz Marin International Airport | 1,913 | 15.6 min | 87.9% | 33 |
| BWI LAS Baltimore/Washington International Thurgood Marshall Airport – Harry Reid International Airport | 3,381 | 15.0 min | 70.0% | 30 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 3 | 3 | 100.0% | 0 |
| November 2024 | 4 | 4 | 50.0% | 0 |
| December 2024 | 13 | 13 | 92.3% | 0 |
| January 2025 | 3 | 2 | 50.0% | 1 |
| February 2025 | 8 | 8 | 75.0% | 0 |
| March 2025 | 27 | 27 | 88.9% | 0 |
| April 2025 | 23 | 23 | 91.3% | 0 |
| May 2025 | 22 | 22 | 72.7% | 0 |
| June 2025 | 27 | 27 | 85.2% | 0 |
| July 2025 | 25 | 25 | 60.0% | 0 |
| August 2025 | 27 | 27 | 85.2% | 0 |
| September 2025 | 26 | 26 | 88.5% | 0 |
| October 2025 | 34 | 34 | 64.7% | 0 |
| November 2025 | 4 | 4 | 50.0% | 0 |
| December 2025 | 2 | 2 | 0.0% | 0 |
| January 2026 | 1 | 1 | 100.0% | 0 |
| March 2026 | 43 | 43 | 79.1% | 0 |
| April 2026 | 37 | 37 | 67.6% | 0 |
| May 2026 | 35 | 35 | 45.7% | 0 |
| June 2026 | 7 | 7 | 71.4% | 0 |
| July 2026 | 4 | 4 | 100.0% | 0 |